Debugging AJAX requests with Google Chrome’s developer tools

A simple way of debugging AJAX requests using Google Chrome.

Running the sample MapReduce JAR in Hortonworks Sandbox

Overview These steps will show you how to run the famous MR wordcount sample JAR in the Hortonworks sandbox. Steps 1- Go to /usr/hdp/current/hadoop-mapreduce-client 2- Create a directory in HDFS where the inputFile will reside 3- Create the inputFile in the local file system 4- Copy the above file from the local file system, into …

Mass-ticking checkboxes with Javascript

Creating a bookmark with javascript to mass edit checkboxes in a page.